Treatment of cotton-seed.



No. 675,422. Patented June 4, l90l. J. C. W. STANLEY.

TREATMENT OF COTTON SEED.

(Application filed Apr. 4, 1898.) (No Model.) 2 Sheets-Sheet l.

Nu. $75,422. Patented lune 4, I901. .l. C. W. STANLEY.

TREATMENT OF COTTON SEED.

(Application filed Apr. 4, 1898.) V

2 Sheets-Sheet 2.

(No Model.)

of the cotton separated from it.

UNITED STATES PATENT OFFICE.

JOHN CHARLES WILLIAM STANLEY, OF LONDON, ENGLAND, ASSIGNOR TO THE COTTON SEED OIL SYNDICATE, LIMITED, OF SAME PLACE.

TREATM ENT OF COTTON-S EED.

SPECIFICATION forming part of Letters iatent No. 675,422, dated June 4, 1901.

Application filed April 4, 1898. Serial No. 676,458. (No model.) 7

To all whom, it may concern:

Be it known that 1, JOHN CHARLES WIL- LIAM STANLEY, a subject of the Queen of England, residing at London, England, have invented certain new and useful Improvements in or Relating to the Treatment of Cotton- Seed, (for which I have made application for patent in England, No. 4,032, dated February 17, 1898,) of which the following is a specification.

This invention relates to the treatment of cotton-seed after it has been r moved from the outer pod'and has hadthe greater part It comprises a method whereby the kernel of the cottonseed can be rapidly and readily separated from the hull and the separated kernels and hulls subsequently treated to producecottouseed-oil cake and pale cotton-seed oil. The oil cakes are mainly composed of either crushed kernels unmixed with hulls or of hulls which have been finely divided while apart from the kernels, or a compound cake may be made from these hulls and the criished' kernels with or without the admixture of other material. The fine division of the separated hulls is of great importance, for by this means any cotton fibers which are attached to them are reduced to such a short length that when the hulls, either mixed with kernels or otherwise, are made into cakes these can be readily broken and assimilated by cattle or other stock, whereas cotton-cake with the long fibers of cotton left in has a most injurious effectupon the animals that eat it.

A further feature of importance in the present invention is the washing of the kernels and any small particles of hull which may adhere to them by water in such a manner that not only are the small adherent particles of hull separated from the kernels, butin ad- .dition the yellowish coloring-matter present in the kernels is washed out of them, so that they are left white, and consequently the oil subsequently extracted from them will be very much paler in color than it the oil had been obtained before this washing operation. The wash-water charged with the matter washed from the kernels can subsequently be treated by filtration, precipitation, or other- -arrangement of apparatus by. which cotton wise to enable the matter suspended therein to be recovered and the water used over again.

In the accompanying drawings, Figures 1 and 1 together illustrate in perspective one seed can be treated according to this'invention. I Fig. 2 is a vertical section of an alternative torm of one of the'machines illustrated in Fig. 1. a v

Like lettersiudicate like partsthroughout the drawings. 1

The cotton-seed is placed in a hopper A, whence it passes through a chute A and over the poles of an electromagnetB or other magnetic separator, which removes in a wellknown manner any metallic impurities that may be mixed with it. I. The seed is delivered into a trough A whence a bucket conveyor 0 takes it to crushing-rolls D, which deliver it onto a vibrating sitter E, through which some of the kernels separated from the hulls by the rolls D fall into areceptacle F. Those portions of the kernels which are too large to fall through the sitter E are delivered over its end, together with the hul1s,to a second conveyor O, which takes them to another setof crushing-rolls D. Here the process is repeated and the crushed seed fall upon a vibrating sitter E, through which some more of the kernels'fall into a receptacle F. The portions of the kernels which are too large to pass through the sitter E are delivered over its end, together with the hulls, to athird conveyer (Rworkingin conjunction with athird set of crushing-rolls D vibrating sitter E and receptacle F where the crushing and sifting operations are again repeated. The hulls and any portions of kernel which may adhere to them are delivered over the end of the siftcr E to a washing-separator G, which comprises atank G, divided by partitions G, so that there is a zigzag channel through it. In each division of the channel is a worm agitator G the blades of which keep the charge of hulls constantlyin motion and propel it along the channel, The worm agitators are so geared, as by thegear wheels G, that they carry the charge up one division of v the channel and down the next until it reaches the exit G A streamof water, comtoo Any portions of kernels which may have 're- .mained with the hulls are'drawn out'of the separator G withlhe stream of water by means 'of a pump J. The hulls, which are heavier than the kernels, arefi'oarried. by the worm'agitators to the exit G whence they are taken by a bucket conveyor-K to a trough T1 provided with worm circulators L, which deliver the hulls through chutes L 'to grinding'mills M, in which the fibers of cotton'ad- 'hering to the bulls are finely divided, a aforesaid.

Sometimes it may be'found desirable to mix the hulls with Indian corn or. other cereal before delivery to the gri-nding millsto enable the rolls or stones to obtain a better grip on the'm'aterial between them.

.T hebuckets K of the conveyerK are preferably perforated to allow the water to drain off from the hulls as they are carried to the trough-L.

The'hulls having been finely divided in the mills M are carried by a worm conveyer N to a filter-press O, wher'ethe moisture is extracted from them and they are, pressed into cakes.

The portions of kernels from the receptacles F F F are carried'by worm conveyors P to endless felt band S travels in the direction marked by the arrow a in Fig. 1. Decklestraps S are provided at the sides of the band, and between the deckle-straps, above the top surface of the band S is a reciprocating stirrer T, moved from an eccentric T and comprising a rectangular frame with cross-bars T which are furnished with project'ions T on their under side.

The kernels are delivered by the band B onto the top of the bands ata point about midway in the length of the table S. They are met by astream of water coming from rator G, and these, with the main body of kernels brought by the bands R, are carried by thestream to the hopper U, one side U of which is preferably perforated to allow the water to pass away. Any hull'swhich have passed through the sitters E E E with the kernels are carried by the band S against.

the stream of water to the trough H, where the water flowing from the supply-pipe H con-' veys them to the end G of the washing-separator G, at which point they join the main portion of the hulls and proceed to the grinding-mills M.

In the passage of the kernels through the washing-separator Sthey are washed, so that the adherent particles of hull and the coloring-matter in the kernels are both removed by the water, which becomes colored and drains away through the perforated portion U of the trough and is afterward collected for further treatment, if desired.

The separated kernels pass from the hopper U, by means of an elevator K with perforated buckets and trough L which may be similar to the conveyor-K and trough L previously described, to oneor more centrifugal se'p'arators or driers W, wherein the excess moisture is extracted from them. The kernels after treatment in the centrifugal separators W are placed in oil-presses X,where the oil is extracted and the residue of the kernels pressed which are mainly composed of crushed ker nels, may be sold in that condition, or-they may be led into mixers and combined with the finely-divided hulls, or cakes made therefrom, and finely pressed to produce a soft pressed cotton-cake containing both kernels and hulls; or, again, the mixing of the finelydivided hulls with the kernels may take place before either of them are pressed.

If desired, an air-separator Y, Fig. 2', -may be used instead of the separator S. This airs'eparator may conveniently comprisea caising-or box, divided into twocompartments Y Y by a division Y and a blower Y, which sends a blast of airin a horizontal direction through an opening in. the division Y The sifted kernels, among which are are-w hulls,

are allowed to descend a chute Y at the hotthe blower Y The kernels are carried over rte tom of which they meet the air-blasffrom:

a partition Y onto a traveling band Z, while the hulls fall straight down and are carried away on another traveling band Z.

.It is obvious that when the kernels are treated in a washing-separator, such as S,

'the water used need not necessarily be that be used, and other variations can be madeiif the construction and arrangement of-the ap-J paratus without departure from this inven tion.

Having thus fully described 'my invention,

what Iclaim, and desire to secure byrLetters Patent,

1. Theprocess herein described of treating.

cotton-seed, which consists in crushing the from the major portion of the kernels, wash from the major portion 'ofthe kernels, washingsaid separated kernels .to "remove therefrom adhering particles of halls, and conveying said hulls away from the kernels,- snbstantially as set forth. f 3. The process herein described or treating cotton-seed,-which consists :in: crushing the seed, separating the major portion of the hulls ing said kernels to separate adhering particles of bull therefrom, causing said hulls to move against a current of water to'separate adher-v ing particles of kernel therefrom, conveying all the hulls thus separated to a common receptacle and conveying allthe kernels thus separated to acommon receptacle, substantially asset forth. 1 v

4. The process herein described of treating cotton-seed, which consists in crushing the V o seed, separating the major portion of the hulls the maj portion of the kernels, washing said ker els to re'move particlesof hull nels from e xcess moisture, and finally extractingth oil from such washed kernels, substantially as set forth.

- 5. The process herein described of treating cotton-seed; which consists in crushing the seed, separating the major portion of the hulls from the major portion of the kernels, washing said major portion of the kernels to sep* 7 and coloring-matter, freeing said washed kery arate adhering particles of hull therefrom,

causing said major portionof thehulls to move against a current 015 water to separate adhering particles of the kernel therefrom,

conveyingall the separated hulLto a common receptacle, reducing said hull to a finely-db vided condition, conveying all the kernel to 'acommon receptacle, freeing said kernel from excessmoisture, extracting the oil therefrom,

hull, and forming said mixtnre into cakes,

snbstantially asset forth.

- In testimony whereof Ihave hereto set my hand in the presence of the two subscribing witnesses,

JOHN CHARLES WILLIAM STANLEY.

Witnesses:

HAB0LD WADE, 5. J HARRY B. Barnens:

, 5 mixing therkernel-cake with" finely-divided 

